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Basic Operation
DSO5000 Series Digital Storage Oscilloscope User Manual 19
3.SEC/DIV Knob: Used to change the horizontal time scale so as to magnify or compress the
waveform horizontally. If the waveform acquisition is stopped (by using the RUN/STOP or SINGLE
SEQ button), the SEC/DIV control will expand or compress the waveform. In dual-window mode,
push this knob to select major or minor window. When the major window is selected, this knob
provides the same functions as it provides in single-mode window. When the minor window is
selected, turn this knob to scale the waveform whose magnification is up to 1000.
Notes:
1. For more information of the trigger holdoff, see Section Trigger Controls.
2. In single-window mode, press F0 to hide or show the menus on the right side. The
dual-window mode does not support the menu hiding function.
5.2.1 Scan Mode Display (Roll Mode)
With the SEC/DIV control set to 80ms/div or slower and the trigger mode set to Auto, the
oscilloscope works in the scan acquisition mode. In this mode, the waveform display is updated
from left to right without any trigger or horizontal position control.
5.3 Vertical Controls
Vertical controls can be used to display and remove waveforms, adjust vertical scale and position,
set input parameters and perform math calculations. Each channel has a separate vertical menu
to set. See below for menu description.
1. VERTICAL POSITION Knob: Move the channel waveform up and down on the screen. In
dual-window mode, move the waveforms in both windows at the same time in a same direction.
Push this knob to return waveforms to the vertical center position on the screen. Two channels
correspond to two knobs.
Multi-functional
Knob
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